Home / 15,565.87-21,480.82-8,492.23

Finding the Fourth Proportional to 15,565.87, 21,480.82 and 8,492.23

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Solution

The fourth proportional to 15,565.87, 21,480.82 and 8,492.23 is: 11,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.87 : 21,480.82 = 8,492.23 : x
  2. Step 2: Convert to fraction form
    15,565.87/21,480.82 = 8,492.23/x
  3. Step 3: Cross multiply
    15,565.87x = 21,480.82 × 8,492.23
  4. Step 4: Simplify right side
    15,565.87x = 182,420,064.03
  5. Step 5: Solve for x
    x = 182,420,064.03/15,565.87
  6. Step 6: Final answer
    x = 11,719.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.